JBoss ON agent unable to discover IIS VHost service due to: "MetaBaseInit: Can't CoCreateInstance"

Issue

• Unable to discover the IIS VHost

• Enabling the DEBUG messages for agent, the following one is caught:

  DEBUG [InventoryManager.discovery-1] (rhq.core.pc.inventory.RuntimeDiscoveryExecutor)- Running service scan on parent resource [Resource[id=12683, uuid=c4eee342-1095-4de8-8f21-69fc669403a0, type={IIS}IIS, key=C:\Windows\system32\svchost.exe -k iissvcs, name=IIS, parent=windows.web.server, version=7.0]] looking for children of type [{IIS}VHost]
  DEBUG [InventoryManager.discovery-1] (rhq.core.pc.inventory.InventoryManager)- Executing discovery for [VHost] Resources...
  DEBUG [InventoryManager.discovery-1] (rhq.core.pc.util.DiscoveryComponentProxyFactory)- Call to [org.rhq.plugins.iis.IISVHostDiscoveryComponent.discoverResources()] with args [[org.rhq.core.pluginapi.inventory.ResourceDiscoveryContext@fe7e0e]] failed.
  java.util.concurrent.ExecutionException: java.lang.Exception: Discovery component invocation failed.
      at java.util.concurrent.FutureTask$Sync.innerGet(Unknown Source)
      at java.util.concurrent.FutureTask.get(Unknown Source)
      at org.rhq.core.pc.util.DiscoveryComponentProxyFactory$ResourceDiscoveryComponentInvocationHandler.invokeInNewThread(DiscoveryComponentProxyFactory.java:221)
      at org.rhq.core.pc.util.DiscoveryComponentProxyFactory$ResourceDiscoveryComponentInvocationHandler.invoke(DiscoveryComponentProxyFactory.java:208)
      at $Proxy47.discoverResources(Unknown Source)
      at org.rhq.core.pc.inventory.InventoryManager.invokeDiscoveryComponent(InventoryManager.java:325)
      at org.rhq.core.pc.inventory.InventoryManager.executeComponentDiscovery(InventoryManager.java:2493)
      ...
  Caused by: java.lang.Exception: Discovery component invocation failed.
      at org.rhq.core.pc.util.DiscoveryComponentProxyFactory$ComponentInvocationThread.call(DiscoveryComponentProxyFactory.java:297)
      at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
      at java.util.concurrent.FutureTask.run(Unknown Source)
      ... 3 more
  Caused by: org.hyperic.sigar.win32.Win32Exception: MetaBaseInit:  Can't CoCreateInstance
      at org.hyperic.sigar.win32.MetaBase.MetaBaseInit(Native Method)
      at org.hyperic.sigar.win32.MetaBase.<init>(MetaBase.java:59)
      at org.rhq.plugins.iis.util.IISMetaBase.getWebSites(IISMetaBase.java:75)
      at org.rhq.plugins.iis.IISVHostDiscoveryComponent.discoverResources(IISVHostDiscoveryComponent.java:62)
      at sun.reflect.GeneratedMethodAccessor40.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
      at java.lang.reflect.Method.invoke(Unknown Source)
      at org.rhq.core.pc.util.DiscoveryComponentProxyFactory$ComponentInvocationThread.call(DiscoveryComponentProxyFactory.java:293)
      ... 5 more
  

• Discovery of IIS VHost service resource fails with the following warning:

  WARN  [InventoryManager.discovery-1] (rhq.core.pc.inventory.InventoryManager)- Failure during discovery for [VHost] Resources - failed after 281 ms.
  java.lang.Exception: Discovery component invocation failed.
      at org.rhq.core.pc.util.DiscoveryComponentProxyFactory$ComponentInvocationThread.call(DiscoveryComponentProxyFactory.java:297)
      at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
      at java.util.concurrent.FutureTask.run(Unknown Source)
      at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
      at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
      at java.lang.Thread.run(Unknown Source)
  Caused by: org.hyperic.sigar.win32.Win32Exception: MetaBaseInit:  Can't CoCreateInstance
      at org.hyperic.sigar.win32.MetaBase.MetaBaseInit(Native Method)
      at org.hyperic.sigar.win32.MetaBase.<init>(MetaBase.java:59)
      at org.rhq.plugins.iis.util.IISMetaBase.getWebSites(IISMetaBase.java:75)
      at org.rhq.plugins.iis.IISVHostDiscoveryComponent.discoverResources(IISVHostDiscoveryComponent.java:62)
      at sun.reflect.GeneratedMethodAccessor40.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
      at java.lang.reflect.Method.invoke(Unknown Source)
      at org.rhq.core.pc.util.DiscoveryComponentProxyFactory$ComponentInvocationThread.call(DiscoveryComponentProxyFactory.java:293)
      ... 5 more